test-1

Questions

1. What is the name of organisation maintains R?

2. Everything in R is treated as _____

3. What is the difference between a data-frame and a matrix? (in one line)

4. List out datatypes in R with example.

5. != is called ____ operator and %% is called ____ operator.

6. An if condition can have multiple conditions separated by a logical operator. (TRUE or FALSE)

7. Output of given program.

x <- 78
y <- 87
if(y > x && FALSE){
  print("y is greater than x")
} else{
  print("else block executed")
}

8. Write a one line program to calculate mean of a given vector marks without using mean function. marks <- c(89,91,68,47,39)

9. a=3, b=7, c=5, write a program to check greatest among these three.

10. Write an user defined function named speed with two arguments dist and time to calculate speed.

 

---

Created and Maintained by Sangram Keshari Sahu
Licensed under CC-BY 4.0
Source Code At GitHub
Template used from Rmdplates package
Run base R